"....we will surface a few of the best Tweets you probably wouldn't have seen otherwise, determined by engagement and other factors," Paul Rosania, a Twitter product manager, wrote in a blog post.

The recaps, which will be marked with the heading "While you were away," will appear for all users on the iOS operating system from Wednesday, with similar alerts for users of the Android app and the Web version of Twitter coming soon.

Users who spend a lot of time on Twitter will see fewer recaps, Twitter said. "Our goal is to help you keep up -- or catch up -- with your world, no matter how much time you spend on Twitter," Rosania wrote. "With a few improvements to the home timeline we think we can do a better job of delivering on that promise without compromising the real time nature of Twitter."

Rosania did not mention whether users would have any control over the tweets that would be included in the recaps and their frequency.

Twitter has previously modified users' timelines. For example, besides showing "promoted tweets," purchased by advertisers, it also started surfacing tweets from accounts that the user didn't follow. "We select each Tweet using a variety of signals, including how popular it is and how people in your network are interacting with it. Our goal is to make your home timeline even more relevant and interesting," Twitter said in a support page.

Twitter reported in late October, when announcing its third-quarter 2014 results, that it is available in more than 35 languages and has 284 million monthly active users, up by 23 percent from the same quarter a year earlier.

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